自动化与信息工程2016，Vol.37Issue(5)：6-11,6.
电梯抱闸线圈对地漏电自动检测方法及电路设计
Automatic Detection Method and Circuit Design of Elevator Leakage Coil to Ground
摘要
Abstract
Focus on the trailer run or slide car problem of elevator resulted from the air control switch not open caused by leakage of elevator brake coiling to ground, an automatic detecting method using Hall sensors as the detection components to detect leakage of elevator brake coiling to ground was proposed. Firstly, the mechanism of elevator leakage to the ground was studied, finding that there is 50Hz AC ripple component exist in the positive and negative wire when the leakage happens;Secondly, based on the Hall sensor, a sensor circuit and a signal conversion circuit were designed, which will change the leakage signal into a pulse signal; Finally, design a detection circuit and the detection of single-chip software, to achieve the elevator holding coil to ground leakage automatic detection. The experimental results show that the proposed method can accurately detect the leakage of the holding brake coil under the condition of different grounding resistances.关键词
抱闸线圈/漏电/霍尔传感器/自动检测Key words
Brake Coil/Leakage/Hall Sensor/Automatic Detection引用本文复制引用
杨清云,吴开斌..电梯抱闸线圈对地漏电自动检测方法及电路设计[J].自动化与信息工程,2016,37(5):6-11,6.
